Characteristics and composition of sewage – population equivalent -Sanitary sewage flow estimation – Sewer materials – Hydraulics of flow in sanitary sewers – Sewer design – Storm drainage-Storm runoff estimation – sewer appurtenances – corrosion in sewers – prevention and control – sewage pumping-drainage in buildings-plumbing systems for drainage – Rain Waterting.

Objectives – Unit Operations and Processes – Selection of treatment processes –- Onsite sanitation – Septic tank- Grey water harvesting – Primary treatment – Principles, functions and design of sewage treatment units – screens – grit chamber-primary sedimentation tanks – Construction, Operation and Maintenance aspects.

Objectives – Selection of Treatment Methods – Principles, Functions, – Activated Sludge Process and Extended aeration systems -Trickling filters– Sequencing Batch Reactor(SBR) – Membrane Bioreactor – UASB – Waste Stabilization Ponds – – Other treatment methods -Reclamation and Reuse of sewage – Recent Advances in Sewage Treatment – Construction, Operation and Maintenance aspects.

Standards for– Disposal – Methods – dilution – Mass balance principle – Self purification of river- Oxygen sag curve – deoxygenation and reaeration – Streeter–Phelps model – Land disposal – Sewage farming – sodium hazards – Soil dispersion system.

Objectives – Sludge characterization – Thickening – Design of gravity thickener- Sludge digestion – Standard rate and High rate digester design- Biogas recovery – Sludge Conditioning and Dewatering – Sludge drying beds- ultimate residue disposal – recent advances.